package advance_1;

public class SbTest {
    public static void main(String[] args) {
        //>>>StringBuffer

        StringBuilder sb = new StringBuilder();
        sb.append("java").append("laoliu").append("C#");
        sb.append(3.154);
        sb.append(2 > 1);
        sb.append('L');
        System.out.println(sb);
        sb.delete(3,5);
        System.out.println(sb);
    }
}
